A wire of length $L,$ area of cross-section $A,$ is hanging from a fixed support. The length of the wire changes to $L_1$ when mass $M$ is suspended from its free end. The expression for Young’s modulus is:

A ray is incident at an angle of incidence $i$ on one surface of a small-angle prism (with angle of prism $A$) and emerges normally from the opposite surface. If the refractive index of the material of the prism is $\mu$, then the angle of incidence is nearly equal to:

Two cylinders $A$ and $B$ of equal capacity are connected to each other via a stopcock. $A$ contains an ideal gas at standard temperature and pressure. $B$ is completely evacuated. The entire system is thermally insulated. The stopcock is suddenly opened. The process is:

An iron rod of susceptibility $599$ is subjected to a magnetizing field of $1200$ A/m. The permeability of the material of the rod is:$\quad (\mu_0 = 4\pi \times 10^{-7}$ Tm/A$)$

The energy equivalent of $0.5$ g of a substance is:

The calculated spin only magnetic moment of $Cr^{2+}$ ion is:

Match the following and identify the correct option.

The mixture which shows positive deviation from Raoult’s law is:

Identify the correct statement from the following:

Urea reacts with water to form A which will decompose to form B. B when passed through Cu$^{2+}$(aq), deep blue colour solution C is formed. What is the formula of C from the following?

Which of the following statements is correct?

Match the following concerning essential elements and their functions in plants.

Which of the following is not an inhibitory substance governing seed dormancy?

From his experiments, S.L. Miller produced amino acids by mixing the following in a closed flask:

Experimental verification of the chromosomal theory of inheritance was done by: